Low psi build. Trying to get my feet wet with room for improvement later.
#1
Low psi build. Trying to get my feet wet with room for improvement later.
Hey guys! I have a 1992 miata that im looking to turbo. Ive done reading on other builds and have been reading maximum boost by corky and I think im ready to start the buying. Let me outline my plan and you guys can poo poo on it and tell me what im missing.
Step 1
Ill start out by buying a DIYPNP (still not positive if a MS3 will be worth it in the long run)
Next up, buying rx7 injectors (550cc? Im not planning on going past 220~ hp, so would 460cc suffice?)
Then buying a wideband (not positive how this connects to the pnp ECU?)
Possibly a TPS? Or should I wait till I turbo. (Also not sure how this connects to the ECU)
Also not sure if I need COPs for such a low boost.
Then install these onto the car and learn to tune all this and get a good map going.
Step 2
Purchasing the BEGI Shanghai-s turbo kit. Anyone have any experience with the china charger? Ive read decent things about it but I wonder how much better it would be to source a garret sr20 or something of the like.
Also I was curious if the braided and steel coolant and oil lines were worth the upgrade? I wouldnt have a problem replacing rubber lines occasionally if they are overkill. Or can I buy these lines cheaper somewhere else? Also I will be upgrading the materials to stainless to prevent holes.
Then I should be boosted at around 6psi.
This seems like a fun place to start that will get my feet wet into turbocharging. I know I will only make around 150-160hp with this setup and thats completely fine. I just want the experience right now. Down the line when I have more money id like to do the clutch, and add and intercooled setup.
What do you guys think? Did I miss anything?
Step 1
Ill start out by buying a DIYPNP (still not positive if a MS3 will be worth it in the long run)
Next up, buying rx7 injectors (550cc? Im not planning on going past 220~ hp, so would 460cc suffice?)
Then buying a wideband (not positive how this connects to the pnp ECU?)
Possibly a TPS? Or should I wait till I turbo. (Also not sure how this connects to the ECU)
Also not sure if I need COPs for such a low boost.
Then install these onto the car and learn to tune all this and get a good map going.
Step 2
Purchasing the BEGI Shanghai-s turbo kit. Anyone have any experience with the china charger? Ive read decent things about it but I wonder how much better it would be to source a garret sr20 or something of the like.
Also I was curious if the braided and steel coolant and oil lines were worth the upgrade? I wouldnt have a problem replacing rubber lines occasionally if they are overkill. Or can I buy these lines cheaper somewhere else? Also I will be upgrading the materials to stainless to prevent holes.
Then I should be boosted at around 6psi.
This seems like a fun place to start that will get my feet wet into turbocharging. I know I will only make around 150-160hp with this setup and thats completely fine. I just want the experience right now. Down the line when I have more money id like to do the clutch, and add and intercooled setup.
What do you guys think? Did I miss anything?
Last edited by Fatvod; 12-26-2013 at 10:15 PM.
#13
Instead of doing a half *** job and then pulling it apart again, do a 1.8 from the start so u're not wasting any money. Of course you never said what your "improvement later" goal is.
At 6 psi with no intercooler on a 1.6 you will actually make 120whp, so no you're far from your 150-160 whp goal.
At 6 psi with no intercooler on a 1.6 you will actually make 120whp, so no you're far from your 150-160 whp goal.
#14
FWIW I made 150whp on a dynojet at 8psi with a pretty conservative spark map (~24 degrees at peak power and WOT) on my 1.6 with a SR20 T25. Granted mine was intercooled. I'd think at 6psi you'd see around 130whp. Before my clutch was in I was running around 11-12psi and didn't realize the clutch was slipping until I got the new one in. Mechanical empathy is important with the stock 1.6 parts.
Last edited by albumleaf; 12-28-2013 at 05:13 PM.
#15
Instead of doing a half *** job and then pulling it apart again, do a 1.8 from the start so u're not wasting any money. Of course you never said what your "improvement later" goal is.
At 6 psi with no intercooler on a 1.6 you will actually make 120whp, so no you're far from your 150-160 whp goal.
At 6 psi with no intercooler on a 1.6 you will actually make 120whp, so no you're far from your 150-160 whp goal.
Goal is most likely 180hp. I honestly wouldnt mind pulling the engine later. Im young, having projects is what gets me better at learning to do car builds. If it means taking apart the car a year from now to do an engine swap then so be it. And I guess I could go intercooled when I buy the shanghai kit. Does anyone have any recommendations on ebay intercoolers? Also ill have to give BELL a ring (hah bell, ring) and ask them the wait time on there parts. If its over a year then ill have to scrap that plan and see if I can source a kit somewhere else.
#16
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Goal is most likely 180hp. I honestly wouldnt mind pulling the engine later. Im young, having projects is what gets me better at learning to do car builds. If it means taking apart the car a year from now to do an engine swap then so be it. And I guess I could go intercooled when I buy the shanghai kit. Does anyone have any recommendations on ebay intercoolers? Also ill have to give BELL a ring (hah bell, ring) and ask them the wait time on there parts. If its over a year then ill have to scrap that plan and see if I can source a kit somewhere else.
Step 2: Swap in 1.8, preferably a vvt motor.
Step 3. Turbo
Step 4: Profit.
The steps are easy, follow them.
#17
FWIW I made 150whp on a dynojet at 8psi with a pretty conservative spark map (~24 degrees at peak power and WOT) on my 1.6 with a SR20 T25. Granted mine was intercooled. I'd think at 6psi you'd see around 130whp. Mine was also intercooled. Before my clutch was in I was running around 11-12psi and didn't realize the clutch was slipping until I got the new one in. Mechanical empathy is important with the stock 1.6 parts.
#19
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A good friend made a solid 200hp on a CARB legal BEGI S1 kit @ 10psi with a GT2554R, MSPNP (gen1), RX7 460's and Bell #1 intercooler. This was with a shagged out 150k+ mile 95 1.8, so not even the "good" 1.8.
Seriously consider a 1.8 swap before you start buying 1.6 parts. Why start with 90hp when you can start with 120?
Seriously consider a 1.8 swap before you start buying 1.6 parts. Why start with 90hp when you can start with 120?
#20
Goal is most likely 180hp. I honestly wouldnt mind pulling the engine later. Im young, having projects is what gets me better at learning to do car builds. If it means taking apart the car a year from now to do an engine swap then so be it. And I guess I could go intercooled when I buy the shanghai kit. Does anyone have any recommendations on ebay intercoolers? Also ill have to give BELL a ring (hah bell, ring) and ask them the wait time on there parts. If its over a year then ill have to scrap that plan and see if I can source a kit somewhere else.